Johann Georg Gasser of Wolfurt

Johann Georg Gasser of Wolfurt

Looking for the parents of a Johan Georg Gasser, b-17 Dec 1784 and d-21 Aug 1859 in Wolfurt. Johan married a Magdelena Flatz (dtr of Andreas Flatz and Anna Kob)in Wolfurt on 28 Oct 1811. The information I have is from the "Flatz" line and I'm trying to work on the parents of the spouses of the "Flatz" Any information on sources to search would be appreciated